Carbureter.



' R, W. SHAW.

G ARBURETER.

APPLICATION FILED SEPT. 25, 1909.

Patented Dec; 20, 1910.

, Robert W Shaw, "Q/Vi/bvw ooeb 5 (a emz aw 4O provided on one side with an inclined nipple 55 A supporting plug is threaded into the cation.

ROBERT WM. SHAW, 5F NEW YORK, N. Y.,

AssIGnoR-or-oNE-n LF To GAVIN RAE,

OF NEW YORK, N. Y.

CA'BBURETER.

erase-,7.

Specification of Letters Batent.

Application filed September 25., 1999. Serial No. 519,601. v i

To (dim/720m it may c0ncem:

3e it known that I, ROBERT \VILLIA); Simw, a citizen of the United States, resid ing at New York, inthe county of New York and State of Xew York, have invented cer-' .tain new and useful Improvements in Car bnreters, of-which the following is a specifi- The present invention relates tomeans for producing an explosive gaseous or vaporous mixture .for internal combustion engines, and the object in view is to provide'an exceedingly simple structure, which will be reliable, and can be adjusted to varying con-c ditions in order to secure a maximum of efficiency with a minimum amount of fuel.

- An einbmliment'of the invention that isa-t present considered preferable, and one that v has proveirentirely satisfactory is disclosed in the accompanying drawings, wherein Figure l, is a longitudinal sectional view. through the carburetor. Fig. 2 is a plan view of the air. actnatedvalve.

Similar reference numerals designate corresponding parts -in all the figures of the drawings.

In the emlmdiment disclosed, an openended tubularcasing 3 is'en'iployed that :is provided with a straight-away air passage 4- thercthrough. The inlet portion of said passage tapers inwardly, as shown at 5,and ternnnates' at its-inner and smaller end in an inclined. valve seat 6, thus producing a nozzle that alines with the other end. portion 7,

which e 1'1d 1' r )rtion' is preferably threaded interiorly, as shown at 8 'in order that it may be conveniently coupled to an engine. A butterfly throttle valve 9, located in said. endportion 7, controls the supply of explosive. mixture to the engine. The casing is also 10,.the bore of which .is disposed at right angles to'the valve seat 6, and in substantial alinement with the opening that is surroundcd by said seat. i I

An air-actuated valve 11 ispivoted, as

. shown at 12 within the casing and normally an eccentric rests against the valve seat 6, being thus disposed at an inclination within the passage 4. This valve is preferably circular in sha e,

and has a projectii'ig'ear 13, through which the pivot 12 passeslf It is also provided with a ly. disposed seat '14 that is arranged contiguous to the'ear l3 The nipple 16'has its inner end disposed in opposition to the valve" 11, and has a fuel discharge orifice 18, in rear of'which 1s a 7 'valve seat 19, forming one end of a fuel "chamber 20. Fuel is supplied to this cham:

her by any suitable source, through a con-- pli'ng nipple 21. j A fuel controlling valve 22 Patented D c.12o, 1910 i cooperates with the'seat 19, and has a stem 23 thatprojectSthrough the orificel8, and

rea'rwardly or; outwardly projecting stem 24, the outer end of which is disposed-ina socket 25 formed'longitudinally in the inner end of i an adjusting sten1'26. This stem is threaded through ahead 27 screwed-into the outer end of the nipple l6, which'head is covered by 1 a packing cap 28. Thestein also has a suit able actuating head 29, the periphery of which is preferably knurled. or otherwise roughened. A' coiled spring 30 surrounds has its-free end located in .the recessed seat v 14 of'th'e: -alve 11.; Said valve also has a j the stem 24, one end hearing against the 30 valve 22, the other end against the stem 26;

The manner-in which the device operates may be briefly described as follows. i It will of course be'under'stood that the-casing 3 has the end 8 connected to an'engine by any suitable means, and that said casing may bedisposed vertically, horizontally or in any position found most convenient; The sup.-

ply of gasolene or other fuel is connected to the'nipp1e-21. lVhen the throttle valve 9 is opened, up0n" the intake stroke of the'engine,

air will be drawn through the funn'ed .por

tion 5, and consequentlya draft'of great intensity will be created in-th'e passage 4. The

valve 11 is of {course raised from its seat by theinrush, thus pressing against the stem 23,

and opening the valve 22, which will permit fuel to flow from the'chamber2O into the. inru shing. body of. air. Immediately this fuel will be vaporized and engine. action -of the air can bejreadily variedfby turning the'stem 26 to more or less the spring 30. The simplicity of the Struc-P ture will be obvious from aninspecti0nof the drawings, and furthermore the parts are entirelyaccessible. For-instance, the air actuated valve 11 can be readily removed and armed into the 100 The" amount of. resistance. .to-.the

replaced by unscrewing the plug 15'fr0m the bosslO," This removesthe entire'fuel feed mechanism in assembled condition, and gives access to the valve 11. By removing the pivot 12; the valve can be removed through the opening in the'boss l0, inasmuch as the diameter of said valveisless than the diameter of the opening. I

From the foregoing, itis thought that the construction, operation and many advantages of the herein described invention will be apparent to those skilled in the art without turther description, and it will be understood that various changes in the size, shape, proportion and. minor details of construction may be resorted to Without departing from thespirit or sacrificing any of the ad-;

vantages of the invention. .Haviug thus fully described my invention,

what I claim as new, and desire to secure by Letters Patent, is:- 20

In a 'carbureter of the character described, the combination with a tubular open ended casing, one end portion ofwhich tapers inwvardly'and terminates in an inclined valve trolling valve normally resting against the seat and having a stem that engages the air actuated valve, and means for opposing a variable resistance to the opening of the air actuated and fuel controlling valves.

In testimony whereof, I afiin my signature -,1n presence of two witnesses.

; R BERT WM. SHAW.

Witnesses GAVIN RAE. Cnannxcn W. Samoa. 

